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Firstly,we particularly explained the algorithmic of themusic recognition.Then,we made a study of the music characteristic and the musicrecognition methods.As for the burrs of the music signal,we put forward a curveplastic method to eliminate the burrs.Considering the difficulties of detecting thepoint of the music speech,we made use of the multi-frequency energy curve to detectthe end-point of the music signal with the crossing zeros rate.As for thedisadvantages of the large operation and influence of the formant,we improved theAMDF theory with the linear prediction algorithmic to detect the error.In order toobtain the characteristic parameter of the music signal,wo calculate the MFCCparameter to obtain the template and the pending signal characteristic parameter.Inorder to improve the rate of the recognition,considering the disadvantages of theDTW algorithmic,we find a new method to improved the DTW algorithmic bybroadening the point of the music signal and made simulation experimentation;As forthe disadvantages of the contraposition grade to the pitch,cadent and sing name,wefind a method to dynaic adjust the results of the recognition to improve the accuracyof the grade.

详细阐述了嵌入式音乐识别算法的详细设计与实现,研究了音乐语言的特点和音乐识别的侧重点,并阐述了基于音乐信号特色的语音处理及识别方法;针对音乐信号中的毛刺干扰,提出了曲线整形的思想,消除了音乐信号中的毛刺;针对音乐信号端点检测困难的特点,利用多频段能量曲线分割结合过零率来实现端点准确检测;针对音高提取运算量大且容易受共振峰影响的特点,利用线性预测残差的方法对传统的AMDF算法进行了改进并提取出了音高,在实际实现时,优化了AMDF算法,减少了计算量;为了得到较好的特征参数,通过求取梅尔频标倒谱系数的方法,分别提取了模板信号特征参数和待测信号特征参数;为了提高识别率,针对传统DTW算法的缺陷,采用了放宽端点和声刺激法改进了传统的DTW算法的性能并进行了仿真试验,使音乐识别率得到明显提高;在音高、节奏评分时,针对对位评分的缺点,采取了动态调整的方法提高了评分的准确度。

The influences of plating process parameters, such as sulphamate concentration, electrolyte pH value and temperature, and pulse parameters, such as cathodal current density, pulse current frequency and duty cycle, on the micro-hardness of the nickel deposit has been studied by orthogonal experiments.

利用正交试验法分析研究了主盐氨基磺酸镍浓度、电镀过程工艺参数及脉冲参数(阴极电流密度、脉冲频率和占空比)对镀层显微硬度的影响;并对相关参数进行了优化。

is presented allowing the adaptive simulation of tubofan compone nt performance adapting to engine particularities.The method can provide accurate simulation for component maps using nonlinear simplx optimization with primary performance particularit ies' function as objective function and coupling coefficient as optimized parameters.

本文以航空发动机部件通用特性为基础运用单纯形优化方法,以发动机主要性能参数和过程参数偏差函数最小为优化目标,以部件特性耦合因子为被优参数,发展了一种预测发动机部件特性的自适应模型方法。

The influences of the stiffness and damping of front spring,rear spring and seat cushion were analyzed by orthogonal tests.The seat cushion is the most important for the seat vibration,and the front spring makes a more important effect on seat vibration and hand vibration than the rear spring, the effect of the front spring on seat vibration and hand vibration is not consentaneous.

利用正交优化法分析了悬架、坐垫参数对平顺性的影响,结果表明:坐垫参数对座位处振动影响最大,相比后悬架,前悬架参数对座位处和手把处振动的影响大,前悬架小刚度大阻尼对座位处振动有利,前悬架大刚度小阻尼对手把处振动有利。

Results: Of the slight keratoconus group: the above indexes significantly decreased(P<0.05). Of the moderate group: the above indexes, except for the apex decentration distance significantly decreased at 12 months and more evidently at 18 months. Of the severe group, the K value significantly decreased at 12 months and other figures remained unchanged. However, all the indexes significantly decreased except that the apex decentration distance remained unchanged at 18 months.

结果:轻度组,配戴RGPCL后角膜散光、锥顶K值、锥顶偏心距离、SRI、SAI较配戴前均有显著性降低(P<0.05);中度组,除12个月时锥顶偏心距离、角膜散光值较配戴前无显著变化外,其他各项参数亦有明显降低,18个月时下降更为明显;重度组,12个月时除锥顶K值显著减小外,其他参数变化不大,18个月时除锥顶偏心距离的变化不显著外,其他参数显著降低。

According to parameterized complexity theory, a decidable parameterized problem is fixed-parameter tractable if and only if it can be kernelized.

参数计算与复杂性理论中,一个参数问题是固定参数可解的问题当且仅当该问题是可核心化的。

The constitution mode and inclusion information of assembly drawings has been analyzed according to the expression contents and demand of rolling mill assembly drawings. The dendriform assembly model has been setup to express the assembly drawings contents. Under AutoCAD graphic environment, assembly drawings are realized with parts consolidation technology. Generating of local view, dimensioning, technical requirement, expression of list and title panel has been realized too. Generating of parts has been discussed and processing strategy of parametric drawings has been pointed out.

根据轧机装配图的表达的内容和要求,分析装配图的构成方式和应包含的信息,提出了建立树状装配模型来表达装配图的内容,基于AutoCAD图形环境,采用了用零件图拼装实现装配图生成的解决方案,并实现了装配图中有关局部视图的生成、尺寸标注、技术要求、标题栏和明细表的表达,并讨论了零件图的生成问题,提出了参数化绘图数据的处理策略,即利用PDB可编程对话框工具,设计了零部件的参数化编程框架,完成了工作辊、支承辊、机架等零部件的参数化编程。

Regardless to the research development or industrial application, nano metal powders are extensively discussed. Within these powders, the flammable and explosible nano aluminum, titanium and iron powders produce a great amount production and apply widely. Meanwhile, the surface/volume ratio of powders is increased significantly under nano scale, in which to enhance the ignition opportunity. Thus, the dust explosion hazard risk of nano powders could remarkable rise. In addition, the comparison of explosion phenomenon, test methods and quantification parameters between nano and micro scale is necessary to deeply investigate further. So that this project operates the explosion characteristic experiments to measure and determine such the maximum explosion pressure, minimum explosion concentration and explosion characteristic Kst value on above mentioned three nano metal powders. Expectantly, to provide the appropriate recommendations of safety prevention for nano dust explosion based on the experimental results.

奈米金属粉末无论是研究发展或是工业界应用,目前皆是广泛讨论研究之材料,其中,奈米铝粉、奈米钛粉以及奈米铁粉等可燃、爆性粉末,均有高额产量及大量应用领域,与此同时,在粉末粒径进入奈米尺度的情况下,粉尘比表面积大幅提升,增加此三种粉尘可被点燃的机会,因此,潜在的粉尘爆炸危害风险将广幅增加,另外,微米尺度粉尘爆炸的现象、测试方法以及量化参数是否具有相同的实验尺度基点,也需要深入探讨,故本次计画针对上述三种奈米金属粉末,进行三种不同粒径的爆炸特性参数实验,如最大爆炸压力、最低爆炸浓度以及爆炸特性参数Kst值之量测与计算,期能量化其粉尘爆炸特性,并据此提出适当的安全防护建议。

Main results are given as follows:(1) By means of the parameterization of convective gustiness, the mesoscale enhancement of surface fluxes is included in CAM3, thus, the parameterization scheme of sea surface turbulent fluxes in CAM3 is improved.

本文通过对流性阵风参数化方法,在CAM3原有海气湍流通量参数化方案(CAM3方案)中引入边界层自由对流和降水深对流对海表湍流通量的贡献,改进了CAM3模式的海气湍流通量参数化方案(CAM3 ME方案,简称ME方案)。

The parameterization scheme of sea surface turbulent fluxes in CAM3 (Community A tmosphere Model Version 3) was improved by the parameterization for win d gustiness, which considers the contribution to sea surface fluxes by the bound ary free convective and precipitation convective. The new parameterization schem e is named CAM3 ME scheme.

通过对流性阵风参数化方法,在CAM3原有海气湍流通量参数化方案(CAM3方案)中引入边界层自由对流和降水深对流对海表湍流通量的贡献,改进了CAM3模式的海气湍流通量参数化方案(CAM3 ME方案)。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。